Ore-concentrator.



F. D.'REID.

ORE CONCENTRATOR.

APPLICATION FILED SEPT. 19. I913.

Patented Apr. 6, 1915.

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FRASER I). REID, OF COBALT, ONTARIO, CANADA.

ORE-CONCENTRATOB.

Application filed September 19, 1913.

To all whom it may concern Be it known that I, FRASER D. REID, a subject of the King of Great Britain, and resident of the town of Cobalt, in the Province of Ontario, Canada, engineer, having invented certain new and useful Improvements in Ore-Concentrators, do hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to ore concentrating tables. Its object is to provide a table which shall effectively separate mineral from sand and the like, which are fed onto the table in a finely divided form.

The invention consists in the novel construction, location and arrangement of parts hereinafter described, as shown in the ac companying drawings.

Referring to the drawings Figure 1 is a plan view of the deck of a table constructed according to my invention, there being no cover on the same and the feed box and dressing water box being shown in dotted outline; Fig. 2 a cross-section on line 22 of Fig. 1; Fig. 3 a cross-section on line 3-3 of Fig. 1; Fig. 4 a cross section on line 44 of Fig. 1; Fig. 5, a cross section on line 5-5 of Fig. 1; and Fig. 6 a sectional view on line 66 of Fig. 1.

The concentrator deck consists of a frame or bed 10 which may be of any suitable form, but preferably it is rhomboidal in outline. The side 1112 is the head motion side, a suitable driving mechanism 13 being connected to the deck on said side for differentially reciprocating the deck. End 1114 is the feed end; side 1415 is the concentrates discharge side and end 12-16 is the tailings discharge end. In operation the deck will be tilted so that corners 15, 16 will be the lowest corners of the table and corner 11 the highest corner. Feed box 17 shown in dotted outline is arranged above the feed side of the deck and a dressing water box 18 is arranged along and above the concentrates discharge side. The bed 10 as made is level in every direction. A wedge 19 is secured to the bed and extends from the feed side to the corners 15, 16. It is highest along the concentrates discharge edge of the deck and slopes transversely uniformly to a feather edge about on the line 20-21. This wedge, when the deck is covered with the usual linoleum or other suitable covering forms a section on the deck which slopes upwardly from the major Specification of Letters Patent.

Patented Apr. 6, 1915.

Serial No. 790,699.

portion of the deck toward the cencentrates discharge edge of the deck, which major portion is substantially level transversely or level in a direction parallel to the direction of reciprocation of the deck.

At suitable intervals on the bed 10 are secured a number of wedges or riflles 22 which will be covered by the linoleum. The end 23 of each wedge 22 overlaps on wedge 19. Wedges 22 slope uniformly from said ends 23 to the head motion side of the deck. They also slope to a feather edge on the lines 2324 and 24-25 so as to present a concentrating section on its surface which slopes downwardly in every direction from the end 23 toward the portion of the transversely horizontal section above it. The surface of the portion of the wedge which overlaps wedge 19 also slopes toward said wedge. On the opposite side of the top edge of the wedge indicated by line 2325, the wedge slopes more or less sharply toward the portion of the deck below it for the purpose of furnishing a filler to support the linoleum which would be apt to crack along the high edge of the wedge if the filler were not present. The wedge 26 at the tailings discharge edge is similar in all respects to wedges 22 mately the line 2328 to the concentrates edge, the wedge being planed down to form the floor of the section and the wall 29 of wedge 19 relatively to the floor of the section gradually increases in height from the end 23 of wedge 22 to the concentrates edge. The walls are in practice beveled somewhat so as to permit the linoleum to be placed upon the adjacent sections without danger of cracking. It is to be noted that walls 29 are substantially in lines continuous with the upper edges of wedges 22.

A high board 30 is secured along the feed side and the head motion side to prevent the In operation, the table being adjusted by suitable devices so that it is inclined downwardly from head to foot and the driving mechanism in operation to differentially reciprocate the table approximately parallel to the higher edge of the wedges, pulp is fed along the upper or feed end of the table and it starts down the incline by gravity. The section formed by the first wedge 22 obstructs the flow of the pulp thereby permitting the materials in the pulp to stratify on the surface of the table. The reciprocating movement of the table then predominates over the force of gravity and causes the heavy particles thus stratified to travel toward the section along the concentrates discharge edge. The minerals climb the slope formed by wedge 19 and pass out on the section 27 where they are finally cleaned by the wash water and from which they pass off the table, wall 29 preventing them from passing beyond said section 27. The wash water flowing down the slope formed by Wedge 19 continuously washes back the sand, and the adjacent oppositely inclined surfaces formed by wedges 19 and 22 which are coterminous along line 2324= form a V shaped pocket in which a continuous panning effect is given the materials in it by which the sands are carried back and over wedge 22. The rearward slope of the wedge and its longitudinal taper toward the rear or head motion side of the deck produce a surface which shears off the sands tending to keep them back from the forward or concentrates sides. Each of the sections formed by the wedges below the first act in a similar manner upon the materials in the pulp which pass over the section above it. The wedge above the tailings discharge side of the deck terminates at the corner of the deck and there is no section corresponding to section 27 at said corner, but there is present the pocket formed by the oppositely inclined sections produced by the coterminous portions of wedge 19 and wedge 26 which tends to pan back the sands just as the corresponding pockets above it perform said function.

What I claim is 1. In a differentially reciprocable ore concentrating table the combination of a plurality of concentrating sections on the surface of the table, one section extending from the feed end to the tailings discharge end of the table being substantially level transversely, a series of spaced sections extending from the head motion side of the deck toward the concentrates discharge side which slope in all directions from thereoncentrates discharge end thereof toward the substantially level section above it, a section extendin along the concentrates dischar e side of t e table, which slopes transverse y toward the substantially level section and is coterminous therewith and with each of the series of spaced sections, and section coterminous with the spaced sections and with the transversely inclined section which slope downwardly to the concentrates discharge edge of the table.

2. In a differentially reciprocable ore concentrating table the combination of a plurality of concentrating sections on the surface of the table, one section being substantially level in the direction of reciprocation of the table, a transversely inclined section extending along the concentrates edge of the table which is highest along said edge and is coterminous with the first named section, a plurality of sections spaced apart extending from the head motion side of the table toward the concentrates discharge side, which slope downwardly toward said I head motion side, toward the first named section and toward the transversely inclined section and which are coterminous with both said sections, and sections coterminous with r 4 cating movement of the table, a transversely inclined section adjacent the concentrates discharge edge of the table which is coterminous with the first named section and which is highest along said concentrates discharge edge of the table, and a plurality of sections at suitable intervals on the surface of l the table which extend from the head motion side thereof toward the concentrates discharge side, each of said sections sloping downwardly from the end nearest the con- 3 centrates discharge edge toward the head motion side and toward the first named section and being widest adjacent the transversely inclined section and tapering toward its head motion end.

4. In a differentially reciprocable ore con- I centrating table the combination of a plurality of concentrating sections on the surface of the table; one of the sections extending from the feed side of the table to the tailings discharge side being substantially level in the direction of reciprocation, a section extending along the concentrates dis charge edge of the table which is transversely inclined from said edge toward the first named section, a series of sections spaced apart and extending substantially parallel to the direction of reciprocation of the table, each of said sections being coterminous with the first and second namedsections and being inclined downwardly in every direction toward the portion of the first named section above it from its terminal line with the second named section said inclination along the said coterminal line being opposite to the inclination of the second named section whereby a V shaped pocket is formed by said sections along said coterminal line.

5. In a differentially reciprocable ore concentrating table the combination of a series of concentrating sections on the surface, of the table, one of said sections, extending from the feed side of the table to the tailings discharge side, being substantially level in the direction of reciprocation of the table, a section extending along the concentrates discharge edge of the table coterminous with the first named section and sloping transversely from said edge where it is highest toward the first named section, and a section extending along the tailings discharge side of the table which is coterminous with both the first and second named sections and which slopes both longitudinally and transversely toward the first named section and is highest adjacent the second named section.

6. In a differentially reciprocable ore concentrating table the combination of a concentrating section on the surface of the table which is substantially level in the direction of reciprocation of the tables, a section coterminous with the first named section and extending along the concentrates discharge edge of the table and sloping transversely from said edge toward the first named section, and a plurality of riffles on the deck extending from the head motion side of the table toward the concentrates discharge side thereof, each of said riffles sloping downwardly from their ends nearest the concentrates discharge edge toward their opposite ends.

7. In a differentially reciprocable ore concentrating table the combination of a floor on the deck substantially level in the direction of reciprocation of the table, a wedge secured to said floor along the concentrates discharge edge of the table and sloping transversely toward the floor, a plurality of upright walls formed in said edge which are highest at the concentrates edge of the table and lowest at their opposite ends, a series of wedges secured to said floor and extending from the head motion side of the table toward the concentrates discharge side, thereof, and having their ends nearest the concentrates discharge edge overlapping upon the first named wedge and coincident with the low ends of said walls, said wedges sloping to a feather edge in every direction from said ends toward the floor and the first named wedge and also tapering transversely from the first named wedge toward the head motion side of the table.

In witness whereof I have hereunto subscribed my name in the presence of two witnesses.

FRASER D. REID.

Witnesses:

R. A. How, A. JACKSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

